2-ring binders

A two-ring binder takes sheets punched with a standard two-hole punch. The slimmest models are the 1.5 cm College and the 2 cm Viquel Standard; mid-sized ones are Deli at 2.5 and 2.8 cm and Viquel Propypure at 2.5 cm; the roomiest are the 3.5 cm College and Viquel Propysoft binders. Looks range from plain colours and transparent covers to a textile-covered College and an Angry Birds pattern; the Forofis binder has a pocket on the front cover.